// Copyright (C) 2013 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
  description: >
      `yield` is a valid expression within generator function bodies.
  features: [generators]
  es6id: 14.4
---*/

function Test() {
    var iter, result;
    var obj = {
      *g1() { (yield 1) },
      *g2() { [yield 1] },
      *g3() { {yield 1} },
      *g4() { yield 1, yield 2; },
      *g5() { (yield 1) ? yield 2 : yield 3; }
    };

    iter = obj.g1();
    result = iter.next();
    assert.sameValue(result.value, 1, 'Within grouping operator: result `value`');
    assert.sameValue(
      result.done, false, 'Within grouping operator: result `done` flag'
    );
    result = iter.next();
    assert.sameValue(
      result.value, undefined, 'Following grouping operator: result `value`'
    );
    assert.sameValue(
      result.done, true, 'Following grouping operator: result `done` flag'
    );

    iter = obj.g2();
    result = iter.next();
    assert.sameValue(result.value, 1, 'Within array literal: result `value`');
    assert.sameValue(
      result.done, false, 'Within array literal: result `done` flag'
    );
    result = iter.next();
    assert.sameValue(
      result.value, undefined, 'Following array literal: result `value`'
    );
    assert.sameValue(
      result.done, true, 'Following array literal: result `done` flag'
    );

    iter = obj.g3();
    result = iter.next();
    assert.sameValue(result.value, 1, 'Within object literal: result `value`');
    assert.sameValue(
      result.done, false, 'Within object literal: result `done` flag'
    );
    result = iter.next();
    assert.sameValue(
      result.value, undefined, 'Following object literal: result `value`'
    );
    assert.sameValue(
      result.done, true, 'Following object literal: result `done` flag'
    );

    iter = obj.g4();
    result = iter.next();
    assert.sameValue(
      result.value, 1, 'First expression in comma expression: result `value`'
    );
    assert.sameValue(
      result.done,
      false,
      'First expression in comma expression: result `done` flag'
    );
    result = iter.next();
    assert.sameValue(
      result.value, 2, 'Second expression in comma expression: result `value`'
    );
    assert.sameValue(
      result.done,
      false,
      'Second expression in comma expression: result `done` flag'
    );
    result = iter.next();
    assert.sameValue(
      result.value, undefined, 'Following comma expression: result `value`'
    );
    assert.sameValue(
      result.done, true, 'Following comma expression: result `done` flag'
    );

    iter = obj.g5();
    result = iter.next();
    assert.sameValue(
      result.value,
      1,
      'Conditional expression in conditional operator: result `value`'
    );
    assert.sameValue(
      result.done,
      false,
      'Conditional expression in conditional operator: result `done` flag'
    );
    result = iter.next();
    assert.sameValue(
      result.value,
      3,
      'Branch in conditional operator: result `value`'
    );
    assert.sameValue(
      result.done,
      false,
      'Branch in conditional operator: result `done` flag'
    );
    result = iter.next();
    assert.sameValue(
      result.value, undefined, 'Following conditional operator: result `value`'
    );
    assert.sameValue(
      result.done, true, 'Following conditional operator: result `done` flag'
    );
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
